Add Java 14+ support for default methods
Add Java 14+ support for default methods

The bug which required the reflective use of a hidden constructor is fixed in Java 14 and the normal lookup can just be used. Moreover, that private constructor is no longer even available.

square/retrofit,lichblitz/retrofit,square/retrofit,square/retrofit,ze-pequeno/retrofit,square/retrofit,ze-pequeno/retrofit,ze-pequeno/retrofit,lichblitz/retrofit,lichblitz/retrofit,ze-pequeno/retrofit